CUET Questions — Chemistry

Q20. The manufacture of sulphuric acid involves the following steps. Identify X₁, X₂, X₃ and X₄ in the reactions involved: (i) X₁ + O₂(g) → SO₂(g) (ii) 2SO₂(g) + O₂ --(X₂)--> 2X₃ (iii) X₃ + H₂SO₄ → X₄

Q29. Identify P,Q and R in the correct sequence of reactions shown below. [Image shows Aniline reacting with (CH3CO)2O/Pyridine -> P. P reacts with HNO3, H2SO4, 288K -> Q. Q reacts with OH- or H+ -> R

Q49. Carboxylic acid do not give the characteristic reaction of carbonyl group because: (a) the oxygen atom of the OH group does not contain lone pair of electrons (b) carbonyl carbon of carboxyl grou

Q47. Identify the epsom salt out of the following salts: (a) Pbs (b) ZnS (c) CuFeS2 (d) MgSO4 7H2O

Q12. Match List - I with List - II. List - I (A) Element with highest second ionization enthalpy (B) Element with highest third ionization enthalpy (C) M in M(CO)x is (D) Element with highest heat of

Q46. Which one is the correct electronic configuration of sulphur? (a) [Nel 3s2 3p² (b) [He] 2s2 2p4 (c) [Ne] 3s2 3p4 (d) [Ne] 3s2 3p6

Q9. Ecell for the given cell [Given E Br2/Br =+1.09 V.ECl2/Cl- = +1.36 V] at 298 K is

Q35. Match the chemical conversion in List-I to the appropriate reagent in List-II. List-I (A) Phenol → Benzene (B) CH3CH2OH → C2H5OC2H5 (C) Cyclohexanone → Cyclohexanol (D) CH3CH2OH → CH2 = CH2 List-

Q12. Which of the following statements about gold (Au) element are correct? (A) Gold occurs in nature in native state. (B) Gold dissolves in aqua-regia. (C) Gold is extracted by leaching the metal wit

Q48. The optimum pH for carrying out the reaction of aldehyde with hydroxylamine to form oxime is: